BRL 35135, a potent and selective atypical beta-adrenoceptor agonist.
BRL 35135, via its active deesterified metabolite BRL 37344, is a potent example of a new group of beta-adrenoceptor agonists that stimulate selectively a novel beta adrenoceptor that was originally shown to be present in brown adipose tissue in rodents. BRL 35135 produces a dose-related increase in energy expenditure in rodents and, in genetically obese (ob/ob) mice, a dose of 0.5 mg.kg-1.d-1 has significant antiobesity activity. This weight loss is entirely due to loss of fat; muscle protein is preserved. In studies in nonobese men, BRL 35135 (0.1 mg/kg) increased both resting metabolic rate and the thermic response to a glucose load. BRL 35135 is effective in improving glucose tolerance in genetically obese (ob/ob) mice and obese Zucker (fa/fa) rats at doses that have no significant antiobesity activity. The improved glucose tolerance is the result of significant improvement in insulin sensitivity. In 10-d studies in obese and diabetic patients, BRL 35135 produced improvements in glucose tolerance and insulin sensitivity.[1]References
- BRL 35135, a potent and selective atypical beta-adrenoceptor agonist. Cawthorne, M.A., Sennitt, M.V., Arch, J.R., Smith, S.A. Am. J. Clin. Nutr. (1992) [Pubmed]
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